ProxyPass /app/ http://127.0.0.1:8080/
ProxyHTMLURLMap http://127.0.0.1:8080 /app
<Location /app/>
        ProxyPassReverse /app/ http://127.0.0.1:8080/
        SetOutputFilter  proxy-html
        ProxyHTMLURLMap  /     /app/
        ProxyHTMLURLMap  /app  /app
        RequestHeader    unset  Accept-Encoding
</Location>